Grain-separator



(No Mbdel) Y 2 SheetsSheet 2 J. F. HATFIELD.

GRAIN SBPARATUR.

No. 373,737 Patented Nov. 22, 1887.

Inzenlvx- Q%% 54 A Z Zo rneys N. PETERS. Phalu-Ulhcgnphan wuhin wn. 0.6.

(No Model.) I 2 SheetsSheet J. F. HATFIELD.

GRAIN SEPARATOR. No. 373,737. Patented Nov. 2-2, 1887.

A Z-Zo r 2225 5.

N. PnERs FheimLRhographcr. Wzhirlgtcn. D. C.

UNTTE STaTss ATENT @Tricis.

JAMES F. HATFIELD, OF DUBLIN, INDIANA.

GRAlN SEPARATOR.

SPECIPIUATION forming part of Letters Patent No. 873,737, dated November22, 1887.

Application filed September 38, 1886. Serial No. 214,743. (No model.)

To aZZ whom. it may concern.-

Be it known that I, .Lmrns F. HATFIELD, a citizen of the United States.and a resident of Dublin, in the county of \Vayne and State of Indiana,have invented certain new and useful Improvements in GraiuSep-arators;and I do declare the following to be a full, clear, and exactdescription of the invention, such as will enable others skilled in theart to which it appertains to make and use the same, reference being hadto the accompanying drawings, and to letters or figures of referencemarked thereon, which form a part of this specification.

Figure 1 of the drawings is a representation ofa side elevation. Fig. 2is a similar view of the opposite side. Fig. 3 is a verticallongi-tudinal section. Fig. 4. is a bottom plan view of the grain-shoe.Figs. 5, 6, and 7 are sectional detail views showing the grainshoe andchaff-shoe and their connections.

My invention relates to grain-separators; and it consists in theconstruction and novel combination of parts,as described and claimed.

Referring by letter to the accompanying drawings, A designates thecasing of the separator, which casing is mounted in a suitable frame, B,portions of which form the legs or supports for the separator. Thecasing is supported in an inclined position, the rear end thereof, orthat .end at which the chaff is discharged, being the higher end.

G designates the grainshoe, which is suspended at some distance fromitslower end by hangers D D, Fig. 5, the upper ends of which areprovided with hooks which engage eyes in the upper ends ofupwardlyprojecting metal arms E E, secured to the outer faces of therear supports or legs of the separator, the short-er arms, F,of saidhangers being encircled by springs G, which rest on bearing-plates H ofthe hangers. The upper ends of the arms F project through perforationsor seats in the horizontal portions of the angle-irons I. the latterbeing secured to the outer faces of the grain-shoe O, with theirhorizontal portions upon the spring G. The upper end of the vibratorygrain shoe 0 is connected by angleirons or lugs J to the lower portionsof the pivotcd oscillating shaking-levers K K, said levers beingfulcrumed on bearings L, secured to the sill-pieces M of the casing. Thelevers K K are encircled between their shoulders N below theirfulcrum-points and the angle-irons J by spiral springs P. The lower endsof the springs]? rest upon the horizontal arms of the angle-irons J. Thelower ends of the levers K K project through holes in the horizontalportions of the angle-irons J, and these projecting portions arethreaded to receive nuts R, which regulate the tension of the spiralsprings S, which springs encircle the threaded projecting ends of thelevers K K. The upper portions or arms of the levers K K are providedwith perforations T. in either of which perforations the hook ends ofthe shaking-rods U of the chaff shoe V may be inserted to change thelength of the stroke imparted to the chaffshoe and the chad'riddlescontained therein. Atits rear end, on its outer faces, the chaff-shoe Vis provided with angle-irons XV, through which the front ends of theshaking-rods U project.

The shaking-rods U are provided at about the middle of their lengthswith rigid collars 0r nuts Y, against which the rear ends of theencircling spiral springs Z bear, the front ends of said springs Zbearing against the angleirons VI. The projecting ends of theshakingrods U are threaded, and are encircled by short spiral springs X,which are held in place against the angle-irons W by tighteningnutsa, bywhich nuts their tension is regulated. The levers K and K are virtuallyconnected, as both are in connection with the chaff-shoe, and the leverK is connected by a pitman-rod, b, and a yoke, c, with an eccentric, d,on the end of the fan-shaft e. The fan-shaft is also provided with apinion, f, which engages a gearwheel, g, on the crank-shaft h, which isdriven by an ordinary crank.

The fan itself is a rotary fan of the ordinary construction; but thefan-chamber 2' possesses features of construction not commonly found inthis class of machines, which are as follows: j is a sliding air-valve.which is made are shape in cross-section. This valve is located imn1ediatel y forward of the hopper and chaff-screens and directly in frontof the opening that leads from the fan-chamber to the chaffscreens andworks between a tie-rod, 7c, of the frame and the fan-chamber. Zis alsoan air-valve, hinged near its lower edge to the casing, so that saidedge impinges upon the inclined bottom board, m, of the fan-chamber. Thecasing of the separator is provided in one side with an arcshaped slot,X, and a hand-piece, y, is passed through the slot X into the end of thehinged valve Z, by which to adjust it to open and close said valve. Thegrain-shoe G is provided with screens a o 19, having meshes varying infineness for separating the grain. In the bottom of the grain-shoe, orgrain-box, as it is sometimes called, are placed the grain-spouts g,which are provided with partitions 1', which are made integral with-thespouts q. These grain-spouts and partitions are held in their seats inthe grain shoe or box by slide-rods s s, which are provided with hooksor brackets t at their ends. These slide-rods are passed under saidspouts near each end thereof, and the front ends of said rods are seatedin staples mt, driveninto the lower face of the grain-shoe. The bracketstare driven into the rear ends of the side walls of the grain shoe, sothat they are removable, but are not likely to become accidentallydetached from their seats. By making the partitions r integral with thegrai nspouts both the partitions and the spouts may be removed at thesame time. By making the grain-spouts and their partitions removabletogether a decided advantage is obtained, as the grain-spouts becomefrequently choked, and it then becomes necessary to clean them. By myimproved construction they can be so readily removed, emptied, andreplaced that but little time is lost in giving them this neededattention. The air-valvesj and Z are designed to regulate the blast fromthe fan. Thus by letting the hinged valve Z down the fan produces ablast under the screens, provided the slide-valve j is down at the sametime. By raising the upper valve, Z, to its limit and turning the hingeddoor up to its highest limit the fan will produce a blast over thescreens. Further, by letting the hinged valve down and raising theslide-valve the fan creates a blast both over and under the screens.Then by pushing the slide-valve down and raising the hinged valve theblast from the fan will be out off entirely from the screens.

Having described this invention, what I claim, and desire to secure byLetters Patent,

1. The combination, with the casing, grainshoe, and angle-irons on thefaces of the grainshoe, of the hangers connecting the grain-shoe to themain frame, the perforated shaking-levers, the encircling springs andadj usting-nuts on said levers, the fan-shaft, the eccentric and rodconnecting said shaft and a shaking-lever, the shoe V, the angle-ironsthereon, the rods connecting the shaking-levers and said angleirons, andthe collars and adjusting springs and nuts on said rods, substantiallyas specified.

2. In a grain-separator, the combination, with the grain-shoe, of thegrain-spouts q, the partitions 0*, made integral with said spouts, therods 8, resting under the ends of the spouts and provided at their lowerends with the hooks t, which are driven into the adjacent walls of thegrainshoe, and the staples a, through which said rods pass,substantially as specified.

In testimony whereof I aflix my signature in presence of two witnesses.

JAMES F. HATFIELD.

\Vitnesses:

J AOOB V. HOFFMAN, H. N. BROWN.

